EP0122084B1 - Holhraumresonatorvorrichtung zur Leistungsverteilung und -zuschaltung - Google Patents

Holhraumresonatorvorrichtung zur Leistungsverteilung und -zuschaltung Download PDF

Info

Publication number
EP0122084B1
EP0122084B1 EP84302128A EP84302128A EP0122084B1 EP 0122084 B1 EP0122084 B1 EP 0122084B1 EP 84302128 A EP84302128 A EP 84302128A EP 84302128 A EP84302128 A EP 84302128A EP 0122084 B1 EP0122084 B1 EP 0122084B1
Authority
EP
European Patent Office
Prior art keywords
cavity
cavity resonator
resonators
coupling
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84302128A
Other languages
English (en)
French (fr)
Other versions
EP0122084A2 (de
EP0122084A3 (en
Inventor
Toshiyuki Saito
Naofumi Okubo
Yoshiaki Kaneko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of EP0122084A2 publication Critical patent/EP0122084A2/de
Publication of EP0122084A3 publication Critical patent/EP0122084A3/en
Application granted granted Critical
Publication of EP0122084B1 publication Critical patent/EP0122084B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports

Definitions

  • the present invention relates to a cavity resonator coupling-type power distributor/power combiner. More particularly, it relates to a distributor/combiner of a cavity resonator coupling-type for distributing or combining microwave electric power between a single coupling terminal and a plurality of coupling terminals.
  • GaAs gallium-arsenide
  • FET's field effect transistors
  • Hybrid junction circuits are conventionally used for distributing or combining microwave electric power. Some hybrid junction circuits, however, have disadvantages in that they cause considerable insertion loss and require a considerably large area due to the microstrip lines constituting the hybrid junction circuits.
  • a cavity resonator may be effectively used as a distributor or a combiner because it can provide a high coincidence of both phase and electric power between the input and the output thereof.
  • a single cavity resonator is normally used.
  • a single cavity resonator has by its character, a too narrow bandwidth to be used as a distributor or a combiner. Therefore, a single cavity resonator cannot be practically used as a distributor or a combiner.
  • US-A-2 770 778 discloses a cavity resonator apparatus in which a cylindrical main cavity resonator is surrounded by a plurality of smaller cylindrical auxiliary resonators, each arranged tangentially with its axis inclined to the axis of the main cavity resonator. Each auxiliary resonator is coupled to the main resource by a specially shaped slot.
  • the apparatus can be used to combine high frequency electromagnetic waves generated by oscillators in each of the auxiliary resonators.
  • auxiliary resonators are designed to operate at a single fixed frequency. Moreover, this apparatus has the drawbacks that the physical configuration of the resonators is complex, it is difficult to mechanically couple auxiliary resonators to the main resonators, and the mechanical strength of the assembly is poor.
  • a cavity resonator coupling-type power distributor/power combiner comprising: a first cavity resonator having a symmetric, cylindrical shape with respect to an axis thereof and operatively resonating with a cylindrical TM O,n,O mode, where n is a positive integer; first conducting means having an input/output end for receiving or providing input/output signals of microwave electric power, an electric-field coupling operatively being established between said first conducting means and said first cavity resonator through an antenna; and a plurality of second cavity resonators arranged on the periphery of said first cavity resonator, said second cavity resonators having the same shape and size as each other, magnetic-field coupling operatively being established between said second cavity resonators and said first cavity resonator; characterised in that: and each of said plurality of second cavity resonators is formed as a rectangular waveguide, said second cavity resonators extending radially with respect to said axis of
  • An embodiment of the present invention can provide a cavity resonator coupling-type power distributor/power combiner which can distribute or combine microwave electric power in a wide bandwidth and with a small insertion loss.
  • An embodiment of the present invention can also provide a cavity resonator coupling-type power distributor/power combiner in which a single cavity resonator and a plurality of cavity resonators are magnetically coupled.
  • An embodiment of the present invention can also provide a microwave power amplifier consisting of a cavity resonator coupling-type power distributor, a plurality of amplifying units for amplifying the outputs of the distributor, and a cavity resonator coupling-type power combiner for combining the outputs of the amplifying units, the distribution and the combination being carried out in a wide bandwidth and with a small insertion loss.
  • FIG. 1 shows a block circuit diagram of an example of a conventional microwave power amplifier employing hybrid junction circuits.
  • a hybrid circuit H1 receives microwave input signals at its input terminal IN1 and branches them two ways. The signals on one branch and on the other are received by hybrid junction circuits H2 and H3 , respectively. The hybrid junction circuits H2 and H3 further branch the input signals two ways, respectively.
  • Amplifying units AMP1 through AMP4 receive the branched signals from the hybrid junction circuits H2 and H3 and amplify them.
  • the amplified signals from the amplifying units AMP1 and AMP2 are combined by a hybrid junction circuit H4.
  • the amplified signals from the amplifying units AMP3 and AMP4 are combined by a hybrid junction circuit H5.
  • the combined signals from the hybrid junction circuits H4 and H5 are further combined by a hybrid junction circuit H6.
  • a desired microwave power is output from an output terminal OUT1.
  • each hybrid junction circuit has a high insertion loss so that a number of stages of hybrid junction circuits have a considerably large insertion loss.
  • each hybrid junction circuit is usually constructed by microstrip lines which occupy a large area, so that a number of stages of the hybrid junction circuits occupy a considerably large area, resulting in a large size of the microwave power amplifier.
  • FIG. 2 shows another example of a conventional microwave power amplifier employing cavity resonators.
  • two amplifying units AMP5 and AMP6 are connected between a first cavity resonator CR1 and a second cavity resonator CR2.
  • the first cavity resonator CR1 receives microwave input signals at its input terminal IN2 , and functions as a distributor.
  • the second cavity resonator CR2 provides desired output signals at its output terminal OUT2 , functioning as a combiner.
  • electric-field coupling is established by means of a disk-type antenna A1.
  • electric-field coupling is established by means of a disk type antenna A2.
  • magnetic-field coupling is established between the outputs of the first cavity resonator CR1 and the inputs of the amplifying units AMP5 and AMP6 , and between the outputs of the amplifying units AMP5 and AMP6 and the inputs of the second cavity resonator CR2 .
  • the first cavity resonator CR1 or the second cavity resonator CR2 is a single cavity resonator, and since a single cavity resonator can, by its character, deal with only a very narrow bandwidth of microwave electric power, the conventional amplifier in Fig. 2 cannot be used for distributing and combining a wide bandwidth of microwave electric power.
  • Figure 3 is a partially cut top plan view of a cavity resonator coupling-type power distributor/power combiner, according to an embodiment of the present invention.
  • Fig. 4 is a side view from the direction of the arrows IV-IV' in Fig. 3. In Figs.
  • the cavity resonator coupling-type power distributor/power combiner distributes input signals into eight outputs or combines eight inputs into one output, and comprises a resonator body 1 having an octagonal cross section with a cylindrical cavity, a first cavity resonator 2 formed by the cylindrical cavity, windows 3 for establishing magnetic-field coupling, second cavity resonators 4, windows 5 for establishing magnetic-field coupling, output/input waveguides 6, an input/output part 7, an input/output waveguide 8, a coaxial line 9 combined with the input/output waveguide 8, and an antenna 10 for establishing electric field coupling.
  • the first cavity resonator 2 is formed by the cylindrical cavity formed within the central portion of the resonator body 1.
  • the antenna 10 is provided in the first cavity resonator 2 and at the central portion of the upper surface of the first cavity resonator 2.
  • the antenna 10 is connected to the inner conductor of the coaxial line 9 and operatively establishes an electric-field coupling with the first cavity resonator 2.
  • the first cavity resonator 2 operatively resonates with a cylindrical TM 0,n,0 mode, where n is a positive integer, resulting in a circular magnetic field MF1 as indicated in Fig. 3 by a circle.
  • Each of the eight second cavity resonators 4 is formed by a corresponding window 3, a corresponding window 5, and a cavity formed between them.
  • the second cavity resonators 4 are arranged on the periphery of the first cavity resonator 2 and extend radially and symmetrically with respect to the axis of the cylindrical shape of the first cavity resonator 2.
  • the second cavity resonators 4 have the same shape and size as each other.
  • the cavity in each of the second cavity resonators 4 has a rectangular cross section, and is part of a waveguide.
  • each of the windows 3 and 5 is formed, in this embodiment, by two opposite projections 31 and 32, and 51 and 52 on the inner wall of the waveguide forming each of the second cavity resonators 4. Therefore, the area of each window 3 or 5 is smaller than the cross-sectional area of the waveguide.
  • Magnetic-field coupling is operatively established between the first cavity resonator 2 and each of the second cavity resonators 4, by means of the windows 3 between the first cavity resonator 2 and the second cavity resonators 4, resulting in a magnetic field MF2 in each of the second cavity resonators 4.
  • each of the second cavity resonators 4 having a rectangular cross-section resonates with, for example, TE101 mode, TE102 mode, or other modes. If the cavity in each of the second cavity resonators 4 has a circular cross- section, the resonating mode will be, for example, TE111 mode.
  • Magnetic-field coupling is operatively established between each of the second cavity resonators 4 and the corresponding one of the output/input waveguides 6, by means of the windows 5 between the second cavity resonators 4 and the corresponding waveguides 6.
  • Electric-field coupling may alternatively be established by appropriately forming the windows 5.
  • the output/input waveguides 6 act as output waveguides
  • the input/output waveguide 8 acts as an input waveguide. That is, microwave power supplied to the input waveguide 8 is supplied through the coaxial line 9 to the antenna 10.
  • the input microwave power is transferred to the first cavity resonator 2 by the electric-field coupling between the antenna 10 and the first cavity resonator 2.
  • the microwave power in the first cavity resonator 2 is divided and transferred to the eight second cavity resonators 4 by the magnetic-field coupling between the first cavity resonator 2 and the second cavity resonators 4 by means of the windows 3.
  • the divided microwave power in the second cavity resonators 4 is transferred through the windows 5 to the output waveguides 6.
  • the output power from the output waveguides 6 is supplied to the respective amplifying units (not shown in Figs. 3 and 4).
  • the output/input waveguides 6 act as input waveguides
  • the input/output waveguide 8 acts as an output waveguide. That is, when microwave signals respectively amplified by eight amplifying units (not shown in Figs. 3 and 4) are applied to the input waveguides 6, the microwave power in these input waveguides 6 is transferred through the windows 5, and through the second cavity resonators 4, and combined in the first cavity resonator 2 by the magnetic-field coupling.
  • the combined microwave power in the first cavity resonator 2 is then transferred through the coaxial line 9 to the output waveguide 8 by the electric-field coupling between the first cavity resonator 2 and the coaxial line 9 by means of the antenna 10.
  • a combined microwave signal is obtained at the end of the output waveguide 8.
  • the first cavity resonator 2 has a cylindrical shape, it can be easily manufactured by milling. Also, since the second cavity resonators 4 are formed in one body with the first cavity resonator 2 and on the periphery of the first cavity resonator 2 so as to extend radially and symmetrically with respect to the center of the circular cross-section of the first cavity resonator 2, that is, with respect to the axis thereof, the second cavity resonators 4 can be manufactured easily.
  • Figure 5 is a partially cut top plan view of a cavity resonator coupling type power distributor/power combiner, according to another embodiment of the present invention
  • Fig. 6 is a partial cross-sectional view taken along line VI-VI' in Fig. 5.
  • the difference between the embodiment shown in Figs. 3 and 4 and the embodiment in Figs. 5 and 6 is that, in place of the windows 3 and 5 shown in Figs. 3 and 4, a first set of electrically conductive posts 11 and a second set of electrically conductive posts 12 are provided at respective ends of each second cavity resonator 40.
  • These sets of conductive posts also function to establish a magnetic-field coupling between the first cavity resonator 2 and the second cavity resonators 40, and between the second cavity resonators 40 and the output/input waveguides 6.
  • the embodiment shown in Figs. 5 and 6 has an advantage over the first embodiment shown in Figs. 3 and 4 in that, since none of the second cavity resonators 40 need to be provided with projections for forming the windows 3 and 5 as in Figs. 3 and 4, the second cavity resonators 40 can be easily manufactured because the size of the cross-section of each of the second cavity resonators 40 is the same as the size of the cross-section of each of the waveguides 6 at any place in the second cavity resonators 40.
  • Figure 7 is a partial cross-sectional view of a cavity resonator coupling-type power distributor/power combiner, according to still another embodiment of the present invention.
  • the difference between the embodiment shown in Figs. 5 and 6 and the embodiment in Fig. 7 is that, in place of the conductive posts 11 in Figs. 5 and 6, opposite projections 31 and 32 for forming windows 3 are formed between the first cavity resonator 2 and each of the second cavity resonators 41, as in the first embodiment shown in Figs. 3 and 4, and a conductive wire 13 is provided between the first cavity resonator 2 and each of the second cavity resonator 41 through each window 3.
  • the conductive wire 13 is used to adjust the coupling coefficient between the first cavity resonator 2 and each of the second cavity resonators 41.
  • Figure 8 is a block circuit diagram of a microwave power amplifier employing a cavity resonator coupling-type power distributor and a cavity resonator coupling-type power combiner of any one of the embodiments shown in Figs. 3, 5, and 7.
  • eight amplifying units AMP11 through AMP18 are connected between cavity resonators CR11 through CR18 and cavity resonators CR21 through CR28.
  • the former cavity resonators CR11 through CR18 are in magnetic-field coupling with a cavity resonator CR10.
  • the cavity resonators CR21 through CR28 are in magnetic-field coupling with a cavity resonator CR20.
  • the cavity resonator CR10 and the cavity resonators CR11 through CR18 constitute a divider (distributor) D for dividing microwave power applied to an antenna A3 provided in the cavity resonator CR10 , into eight microwave outputs.
  • the outputs of the divider D are amplified by the amplifiers AMP11 through AMP18 , respectively.
  • the outputs of the amplifiers AMP11 through AMP18 are combined by a combiner C consisting of the cavity resonators CR21 through CR28 and the cavity resonator CR20.
  • a combined output is obtained at an output terminal OUT3 through an antenna A4 in the cavity resonator CR20.
  • the amplifiers AMP11 through AMP18 are provided by a microwave integrated circuit (MIC) having input lines 81 through 88 and output lines 91 through 98. These input lines and output lines are formed by microstrip lines. Electromagnetic-field coupling between the cavity resonators CR11 through CR18 and the input microstrip lines 81 through 88 can be easily established by those skilled in the art. For example, by connecting additional waveguides to the output waveguides 6 (Fig.
  • the additional waveguides can be electromagnetically coupled with the input microstrip lines 81 through 88 by means of MIC antennas provided at the boundary ends of the input microstrip lines between the output waveguides 6 and the input microstrip lines.
  • electromagnetic-field coupling can also be established easily.
  • coaxial cables may alternatively be employed. That is, by introducing antennas connected to coaxial cables into the second cavity resonators 4 (Fig. 3), the second cavity resonators 4 can be coupled with the coaxial cables.
  • the input/output microwave power can be transferred through the coaxial cables and through the input/output microstrip lines into or from the amplifying units AMP11 through AMP18.
  • the power distributor/power combiner can distribute or combine microwave electric power in a wide bandwidth in comparison with the prior art employing a single cavity resonator.
  • the windows 3 as small as possible or by providing an appropriate number of posts 11 and 12, any undesired mode in the second cavity resonators can be limited so that the distribution or combination of microwave electric power can be stably carried out.
  • a cavity resonator coupling-type power distributor/power combiner according to the present invention has a simple structure and a small size.
  • the cavity resonator coupling-type power distributor/power combiner can be effectively used with a number of amplifying units so as to constitute a microwave amplifier.
  • the present invention is not restricted to the foregoing embodiments. Various changes and modifications are possible without departing from the spirit of the present invention.
  • the number of second cavity resonators may be more or less than eight.

Landscapes

  • Microwave Amplifiers (AREA)
  • Amplifiers (AREA)

Claims (8)

  1. Ein Leistungsverteiler/Leistungsvereiniger vom Hohlraumresonatorkoppeltyp mit:
       einem ersten Hohlraumresonator (2), der eine zylinder symmetrische Form bezüglich einer seiner Achsen besitzt und im Betrieb mit einer TMO, n ,O-Mode schwingt, wobei n eine ganze positive Zahl ist;
       einem ersten Leitungsmittel (7, 8, 9), das ein Eingangs/Ausgangsende (8) besitzt, um Eingangs/Ausgangssignale elektrischer Mikrowellenleistung zu empfangen oder bereitzustellen, einer elektrischen Feldkopplung, die im Betrieb zwischen dem ersten Leitungsmittel (7, 8, 9) und dem ersten Hohlraumresonator (2) mit Hilfe einer Antenne (10) aufrecht erhalten wird;
       und einer Mehrzahl von zweiten Hohlraumresonatoren (4, 40, 41), die am Umfang des ersten Hohlraumresonators (2) angeordnet sind, wobei die zweiten Hohlraumresonatoren untereinander die gleiche Form und Größe besitzen, um die Kopplung des magnetischen Feldes im Betrieb zwischen den zweiten Hohlraumresonatoren und dem ersten Hohlraumresonator herzustellen, dadurch gekennzeichnet, daß:
       jeder der Mehrzahl von zweiten Hohlraumresonatoren (4, 40, 41) als ein rechteckiger Wellenleiter ausgebildet ist, wobei die zweiten Hohlraumresonatoren sich radial bezüglich der Achse des ersten Hohlraumresonators erstrecken;
       eine Mehrzahl von zweiten Leitungsmitteln (16) vorgesehen sind, die Ausgangs- bzw. Eingangsenden besitzen, um die Ausgangs/Eingangssignale der elektrischen Mikrowellenleistung zwischen den zweiten Hohlraumresonatoren (4, 40, 41) und den Ausgangs/Eingangsenden der zweiten Leitungsmittel leitend zu verbinden;
       und der erste Hohlraumresonator (2) und die zweiten Hohlraumresonatoren (4, 40, 41) durch Fräsen aus einem Stück gebildet sind.
  2. Ein Leistungsverteiler/Leistungsvereiniger vom Hohlraumresonatorkoppeltyp nach Anspruch 1, bei dem jeder der zweiten Hohlraumresonatoren (4) einen durch einen Wellenleiter gebildeten Hohlraum enthält, ein erstes Fenster (3), das zwischen dem ersten Hohlraumresonator (2) und dem Hohlraum gebildet ist, um eine magnetische Feldkopplung zwischen ihnen herzustellen, und ein zweites Fenster (5), das zwischen dem Hohlraum und einem entsprechenden Hohlraum des zweiten Leitungsmittels (6) gebildet ist, um eine elektromagnetische Feldkopplung dazwischen herzustellen.
  3. Ein Leistungsverteiler/Leistungsvereiniger vom Hohlraumresonatorkoppeltyp nach Anspruch 2, bei dem jedes der zweiten Leitungsmittel (6) durch den Wellenleiter gebildet wird, wobei die Größe des ersten Fensters (3) und die Größe des zweiten Fensters (5) kleiner sind als die Größe der Querschnittsfläche des Wellenleiters.
  4. Ein Leistungsverteiler/Leistungsvereiniger vom Hohlraumresonatorkoppeltyp nach Anspruch 1, bei dem jeder der zweiten Hohlraumresonatoren (40) einen durch einen Wellenleiter gebildeten Hohlraum und einen ersten Satz von elektrisch leitenden Pfosten (11) enthält, die zwischen dem ersten Hohlraumresonator (2) und dem Hohlraum angeordnet sind, um die magnetische Feldkopplung dazwischen herzustellen, und einen zweiten Satz von elektrisch leitenden Pfosten (12) enthält, die zwischen dem Hohlraum und einem entsprechenden Hohlraumresonator des zweiten Leitungsmittels (6) angeordnet sind, um eine elektromagnetische Feldkopplung dazwischen herzustellen.
  5. Ein Leistungsverteiler/Leistungsvereiniger vom Hohlraumresonatorkoppeltyp nach Anspruch 4, in dem jedes der zweiten Leitungsmittel (6) durch den Wellenleiter gebildet wird.
  6. Ein Leistungsverteiler/Leistungsvereiniger vom Hohlraumresonatorkoppeltyp nach Anspruch 1, in dem jeder der zweiten Hohlraumresonatoren (41) einen von einem Wellenleiter gebildeten Hohlraum und ein Fenster (3) enthält, das zwischen dem ersten Hohlraumresonator (2) und dem Hohlraum gebildet ist, um eine magnetische Feldkopplung zwischen ihnen herzustellen, und einen Satz von elektrisch leitenden Pfosten (12) enthält, die zwischen dem Hohlraum und einem entsprechenden Hohlraum des zweiten Leitungsmittels (6) angeordnet sind, um die elektromagnetische Feldkopplung dazwischen herzustellen.
  7. Ein Leistungsverteiler/Leistungsvereiniger vom Hohlraumresonatorkoppeltyp nach Anspruch 6, der ferner einen leitenden Draht (13) zwischen dem ersten Hohlraumresonator (2) und jedem der zweiten Hohlraumresonatoren (41) durch das Fenster (3) enthält, um die magnetische Feldkopplung einzustellen.
  8. Ein Mikrowellenleistungsverstärker mit:
       einem ersten Leistungsverteiler/Leistungsvereiniger vom Hohlraumresonatorkoppeltyp nach einem der vorhergehenden Ansprüche, der einen Leistungsverteiler (D) bereitstellt;
       einer Mehrzahl von Verstärkereinheiten (AMP₁₁ .... AMP₁₈), die Eingangsanschlüsse (81....88) besitzen, die mit den Ausgangsenden des zweiten Leitungsmittels des Leistungsverteilers (D) verbunden sind, und die Ausgangsanschlüsse (91....98) besitzen;
       und einem zweiten Leistungsverteiler/Leistungsvereiniger vom Hohlraumresonatorkoppeltyp nach einem der vorhergehenden Ansprüche, der einen Leistungsvereiniger (C) bereitstellt, wobei die Eingangsenden des zweiten Leitungsmittels des Leistungsvereinigers (C) mit den Ausgangsanschlüssen (91...98) der Verstärkereinheiten (AMP₁₁ .... AMP₁₈) verbunden sind.
EP84302128A 1983-03-29 1984-03-29 Holhraumresonatorvorrichtung zur Leistungsverteilung und -zuschaltung Expired EP0122084B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP53259/83 1983-03-29
JP58053259A JPS59178801A (ja) 1983-03-29 1983-03-29 共振器型電力分配合成器

Publications (3)

Publication Number Publication Date
EP0122084A2 EP0122084A2 (de) 1984-10-17
EP0122084A3 EP0122084A3 (en) 1986-03-19
EP0122084B1 true EP0122084B1 (de) 1991-11-21

Family

ID=12937779

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84302128A Expired EP0122084B1 (de) 1983-03-29 1984-03-29 Holhraumresonatorvorrichtung zur Leistungsverteilung und -zuschaltung

Country Status (5)

Country Link
US (1) US4562409A (de)
EP (1) EP0122084B1 (de)
JP (1) JPS59178801A (de)
CA (1) CA1209217A (de)
DE (1) DE3485273D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7482894B2 (en) 2004-02-06 2009-01-27 L-3 Communications Corporation Radial power divider/combiner using waveguide impedance transformers

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684874A (en) * 1985-02-05 1987-08-04 Trw Inc. Radial wave power divider/combiner and related method
US4642587A (en) * 1985-05-29 1987-02-10 Varian Associates, Inc. Tapered five-port waveguide star junction
WO1987002186A1 (en) * 1985-10-03 1987-04-09 Hughes Aircraft Company Non-reactive radial line power divider/combiner with integral mode filters
JPS63501675A (ja) * 1985-10-03 1988-06-23 ヒユ−ズ・エアクラフト・カンパニ− 広帯域高分離ラジアルライン電力分岐／結合器
JPH0758873B2 (ja) * 1988-08-01 1995-06-21 富士通株式会社 導波管ハイブリッド及びそれを使用した高周波電力増幅器
US4853650A (en) * 1988-10-04 1989-08-01 The United States Of America As Represented By The Secretary Of The Navy Symmetric waveguide junction combiner
US6037840A (en) * 1997-12-18 2000-03-14 Lucent Technologies, Inc. Article comprising a combiner-splitter
GB2347793A (en) * 1999-03-09 2000-09-13 Isis Innovation Degenerate mode combiner
US6320170B1 (en) 1999-09-17 2001-11-20 Cem Corporation Microwave volatiles analyzer with high efficiency cavity
DE10032616A1 (de) * 2000-07-08 2002-01-24 Mhm Harzbecher Medizintechnik Systemelemente zur Druckmessung in extrakorporalen Kreisläufen
US6724261B2 (en) * 2000-12-13 2004-04-20 Aria Microwave Systems, Inc. Active radio frequency cavity amplifier
US6624723B2 (en) 2001-07-10 2003-09-23 Radio Frequency Systems, Inc. Multi-channel frequency multiplexer with small dimension
DE10329411B4 (de) * 2003-07-01 2006-01-19 Forschungszentrum Karlsruhe Gmbh Mikrowellenresonator, eine aus einem solchen Mikrowellenresonator modular aufgebaute Prozessstraße, ein Verfahren zum Betreiben und nach diesem Verfahren thermisch prozessierte Gegenstände/Werkstücke mittels Mikrowelle
US6982613B2 (en) * 2004-02-06 2006-01-03 L-3 Communications Corporation Radial power divider/combiner
DE102006016846B4 (de) * 2006-04-07 2010-02-11 Nikkiso Medical Systems Gmbh Anschlusselement zur lösbar abgedichteten Verbindung eines Fluidleitungssystems mit einem Druckaufnehmer und Druckaufnehmer hierzu
US7616058B1 (en) * 2006-08-28 2009-11-10 Raif Awaida Radio frequency power combining
EP2878036A1 (de) * 2012-08-27 2015-06-03 Siemens Research Center Limited Liability Company Rf-leistungskombinator als oberwellenfilter höherer ordnung
WO2014035274A1 (en) 2012-08-27 2014-03-06 Siemens, Research Center Limited Liability Company Odd harmonic radial rf filter
KR101342885B1 (ko) * 2012-09-21 2013-12-18 (주)엑스엠더블유 최소 가공 및 조립 오차를 갖는 Ｋａ 대역 고출력 증폭기
RU2636265C2 (ru) * 2013-02-01 2017-11-21 Общество с ограниченной отвественностью "Сименс" Радиочастотный объединитель мощности
KR102007230B1 (ko) * 2018-01-26 2019-08-06 한국원자력연구원 대전력 가변 고주파 전력 분배기
US10770775B2 (en) 2018-06-08 2020-09-08 SAAB Defense and Security USA LLC t/a Sensor System Radial combiner

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124768A (en) * 1964-03-10 Resonator
US2550524A (en) * 1945-08-20 1951-04-24 Rca Corp Balanced microwave detector
BE510664A (de) * 1951-04-14
US2770778A (en) * 1951-04-27 1956-11-13 Rca Corp Slot coupling for tangent circular waveguide structures
GB764669A (en) * 1955-02-18 1956-12-28 Standard Telephones Cables Ltd Improvements in or relating to electric waveguide filters
US3156879A (en) * 1960-07-06 1964-11-10 Gen Electric Power divider utilizing inductive coupling in a cavity resonator excited in the tm m ode
US3290682A (en) * 1964-11-02 1966-12-06 Hughes Aircraft Co Multiple beam forming antenna apparatus
US3873935A (en) * 1974-05-13 1975-03-25 Hughes Aircraft Co Microwave power accumulation structures comprising a plurality of stacked elliptical cavities
US4035746A (en) * 1976-09-07 1977-07-12 The Bendix Corporation Concentric broadband power combiner or divider
US4175257A (en) * 1977-10-05 1979-11-20 United Technologies Corporation Modular microwave power combiner
JPS54113241A (en) * 1978-02-24 1979-09-04 Hitachi Ltd Magnetron
US4147994A (en) * 1978-07-31 1979-04-03 Raytheon Company Power combiner
US4238747A (en) * 1979-08-10 1980-12-09 The United States Of America As Represented By The Secretary Of The Air Force Mode filter apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7482894B2 (en) 2004-02-06 2009-01-27 L-3 Communications Corporation Radial power divider/combiner using waveguide impedance transformers

Also Published As

Publication number Publication date
EP0122084A2 (de) 1984-10-17
DE3485273D1 (de) 1992-01-02
US4562409A (en) 1985-12-31
CA1209217A (en) 1986-08-05
EP0122084A3 (en) 1986-03-19
JPS59178801A (ja) 1984-10-11

Similar Documents

Publication Publication Date Title
US4562409A (en) Cavity resonator coupling-type power distributor/power combiner
Yoneda et al. A design of novel grooved circular waveguide polarizers
US6917332B2 (en) Multielement planar antenna
EP0509636B1 (de) Planare Dual-Moden-Miniaturfilter
US4912436A (en) Four port dual polarization frequency diplexer
US5019831A (en) Dual end resonant slot array antenna feed having a septum
US5554995A (en) Flat antenna of a dual feeding type
KR100561634B1 (ko) 유도성 아이리스를 갖는 전계면 결합망 구조의 도파관다이플렉서
US4647869A (en) Microwave solid-state amplifier
US6046702A (en) Probe coupled, multi-band combiner/divider
US4686494A (en) Cavity resonator coupling type power distributor/power combiner comprising coupled input and output cavity resonators
EP0417205B1 (de) Hochleistungsausgangsschaltkreis mit verlängerter wechselwirkung
US6917260B2 (en) Waveguide directional filter
EP0352976B1 (de) Winkel-Diversitysignaltrenner mittels Modenumwandlung
JPS63281502A (ja) 高周波電力増幅器
US6400241B1 (en) Microwave circuit module and a device for connecting it to another module
RU2083035C1 (ru) Высокочастотная плоская антенная решетка
JP3020312B2 (ja) ストリップ線路マイクロ波モジュール
JP3255217B2 (ja) バトラーマトリクス回路とアンテナ装置
EP3000150B1 (de) Wellenleiterkombinierervorrichtung und -verfahren
GB1577228A (en) 4-input/4-output port rf coupler
US5699029A (en) Simultaneous coupling bandpass filter and method
EP0343887A1 (de) Wellenleitervorrichtung
EP0878862B1 (de) Bandpassfilter mit gleichzeitiger Kopplung und Methode
JPH048648Y2 (de)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT NL

17P Request for examination filed

Effective date: 19860507

17Q First examination report despatched

Effective date: 19880203

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL

REF Corresponds to:

Ref document number: 3485273

Country of ref document: DE

Date of ref document: 19920102

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19930105

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19930330

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930331

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930521

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19940329

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19941001

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940329

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19941130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19941201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST